牙槽嵴裂植骨术的时间为
A.16岁以后B.3~6个月C.1~2岁D.4~6岁E.9~12岁唇腭裂序列治疗程序中
参考答案:E
解析:有利于尖牙萌出。
社会主义法治理念是马克思主义法律观中国化的最新成果。有关这一表述,下列哪一说法是不成立的( )
A.社会主义法治理念是马克思主义法律观同中国国情和现代化建设实际逐渐结合的产物
B.马克思主义法律观的中国化进程从新中国成立以后才开始
C.1954年《中华人民共和国宪法》的制定实现了马克思主义法律观中国化的第一次重大创新
D.社会主义法治理念的提出,解决了建设什么样的法治国家、如何建设社会主义法治国家的重大问题
The central problem of economics is to satisfy the people’s and nation’s wants. The problem we are faced with is that our (1) , here identified as money, are (2) . The only way we can resolve our (3) is to make choices. After looking at our resources, we must examine our list of (4) and identify the things we need (5) , those we can postpone, and (6) we cannot afford. As individuals, we face the central problem involved in economics — deciding just how to allocate our limited resources to provide ourselves with the greatest (7) of our wants. Nations face the same problem. As a country’s population (8) , the need for more goods and services grows (9) . Resources necessary to production may increase, but there are (10) enough resources to satisfy the total desires of a (11) . Whether the budget meeting is taking place in the family living-room, in the conference room of the corporation (12) of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find (13) of allocating limited resources in order to satisfy unlimited wants.A short time ago, economists divided goods into two categories, free and economic. The former, like air and water, were in (14) abundance that economists had no concern about (15) of scarcity and what to do about it. Today many of these "free goods" are in (16) very expensive to use. Pollution has made clean air and water expensive for producers who have to filter their waste products, for consumers who ultimately pay for the producers’ extra costs, and (17) tax-payers who pay for the government’s involvement in cleaning the environment.In the 1990s, almost all goods are (18) . Only by effort and money can they be (19) in the form people wish.Meeting the needs of people and the demands from resources available leads to the basic activity of production. In trying to (20) unlimited wants from limited economic goods, production leads to new problems in economics.